Vessel means the vessel/craft belonging to the Contractor for carrying out the work.
U.S.-flag vessel means a vessel of the United States or belonging to the United States, including any vessel registered or having national status under the laws of the United States.
Pressure vessel means containers for the containment of pressure, either internal or external. This pressure may be obtained from an external source or by the application of heat from a direct or indirect source, or any combination thereof.
Tanker in relation to chapter 4 means an oil tanker as defined in MARPOL Annex I, regulation 1 or a chemical tanker or an NLS tanker as defined in MARPOL Annex II, regulation 1.
Contractor Group means Contractor, its parent and subsidiary companies as defined by the term “Affiliate,” and its and their respective Subcontractors and contractors of whatever tier and the officers, directors, employees, agents and representatives of all of the foregoing.
Dangerous weapon means any weapon, device, instrument, material or substance which under the circumstances in which it is used, attempted to be used or threatened to be used, is readily capable of causing death or serious physical injury.